The PMD allows for DPDK and the host to communicate using a raw
device interface on the host and in the DPDK application. The device
created is a Tap device with a L2 packet header.
Signed-off-by: Keith Wiles <keith.wiles@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Aws Ismail <aismail@ciena.com>
Tested-by: Vasily Philipov <vasilyf@mellanox.com>
Enable the PMD by default on supported configurations.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Rename tools/ into usertools/ to differentiate from buildtools/
and devtools/ while making clear these scripts are part of
DPDK runtime.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
There is already a directory buildtools for pmdinfogen used by
the build system. The scripts used in makefiles are moved here.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
error #188: enumerated type mixed with another type
This is get when an integer assigned to an enum variable.
Since this usage is common and causing many ICC compilation errors, and
other compilers accept this usage. Disabling the warning.
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
There was an option CONFIG_RTE_INSECURE_FUNCTION_WARNING (disabled by
default), which prevents from using some libc functions:
sprintf, snprintf, vsnprintf, strcpy, strncpy, strcat, strncat, sscanf,
strtok, strsep and strlen.
It's all about using them at the right place with the right precautions.
However, it is neither really possible nor a good advice to disable them.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
The library was named libethdev without rte_ prefix.
It is now fixed, the library namespace is consistent.
Note: the ABI version has already been changed in this release cycle.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
When trying to install PDF, man pages or examples without having built
neither HTML API nor HTML guides, there was an error:
% make install-doc
tar: html: Cannot stat: No such file or directory
The fix is to check the html directory before installing HTML files.
Fixes: e4552b9cc6 ("mk: install doc")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
This summarizes the "how to call dpdk-devbind" in one place to be
picked up by html/pdf/man-page docs.
That knowledge was available before but spread in various docs along
examples (which are great and have to be kept) as well as in the
--usage/--help option of the tool itself.
As a root only program in sbin it should belong to section 8
"8 System administration commands (usually only for root)"
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Acked-by: Luca Boccassi <lboccass@brocade.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
This enables the rendering of rst into man pages as well as installing
them (if built) along the binaries. To do so there is a new make target
"doc-guides-man" which will render the rst files into man format.
Currently these three tools had docs that were compatible "enough" to
make up for a reasonable manpage.
- testpmd
- dpdk-pdump
- dpdk-procinfo
Since a man page should be installed along the binary they are not
installed in install-doc but install-runtime insteade. If not explicitly
built by the "doc-guides-man" target before calling install-runtime
there is no change to the old behaviour.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Acked-by: Luca Boccassi <lboccass@brocade.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
This patch replaces name "libcrypto" to "openssl" from file directories,
symbol prefixes and sub-names connected with old name.
Renamed poll mode driver files, test files, and documentations.
It is done to better name association with library because
the cryptography operations are using Openssl library crypto API.
Fixes: d61f70b4c9 ("crypto/libcrypto: add driver for OpenSSL library")
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
The QEDE PMD now uses unzipped firmware file eliminating the dependency
on zlib. Hence remove LDLIBS entry form the Makefile and enable qede
PMD by default.
Fixes: 6adac0bf30 ("qede: add missing external dependency and disable by default")
Signed-off-by: Rasesh Mody <rasesh.mody@qlogic.com>
All macros related to driver registeration renamed from DRIVER_*
to RTE_PMD_*
This includes:
DRIVER_REGISTER_PCI -> RTE_PMD_REGISTER_PCI
DRIVER_REGISTER_PCI_TABLE -> RTE_PMD_REGISTER_PCI_TABLE
DRIVER_REGISTER_VDEV -> RTE_PMD_REGISTER_VDEV
DRIVER_REGISTER_PARAM_STRING -> RTE_PMD_REGISTER_PARAM_STRING
DRIVER_EXPORT_* -> RTE_PMD_EXPORT_*
Fix PMDINFOGEN tool to look for matches of RTE_PMD_REGISTER_*.
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
The GCC 4.9 -march option supports the intel code names for processors,
for example -march=silvermont, -march=broadwell.
The RTE_MACHINE config flag can be used to pass code name to
the compiler as -march flag.
Release notes is updated.
Linux and FreeBSD getting started guides are updated with recommended
gcc version as 4.9 and above.
Some of the gmake command examples in sample application guide and driver
guides are updated with gcc version as 4.9.
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Previously, librte_net only contained header files. Add a C file
(empty for now) and generate a library. It will contain network helpers
like checksum calculation, software packet type parser, ...
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
This code provides the initial implementation of the libcrypto
poll mode driver. All cryptography operations are using Openssl
library crypto API. Each algorithm uses EVP_ interface from
openssl API - which is recommended by Openssl maintainers.
This patch adds libcrypto poll mode driver support to librte_cryptodev
library.
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Michal Kobylinski <michalx.kobylinski@intel.com>
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Added new SW PMD which makes use of the libsso SW library,
which provides wireless algorithms ZUC EEA3 and EIA3
in software.
This PMD supports cipher-only, hash-only and chained operations
("cipher then hash" and "hash then cipher") of the following
algorithms:
- RTE_CRYPTO_SYM_CIPHER_ZUC_EEA3
- RTE_CRYPTO_SYM_AUTH_ZUC_EIA3
The ZUC hash and cipher algorithms, which are enabled
by this crypto PMD are implemented by Intel's libsso software
library.
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
remove vhost-cuse code, including the eventfd_link kernel module that
is for vhost-cuse only.
The lib/virt/qemu-wrap.py is also removed, as it's mainly for vhost-cuse
usage.
As we have one vhost implementation now, one vhost config option is
needed only. Thus, CONFIG_RTE_LIBRTE_VHOST_USER is removed.
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Simplify crypto and ethdev pci drivers init by using newly introduced
init macros and helpers.
Those drivers then don't need to register as "rte_driver"s anymore.
Exceptions:
- virtio and mlx* use RTE_INIT directly as they have custom initialization
steps.
- VDEV devices are not modified - they continue to use PMD_REGISTER_DRIVER.
Update documentation for replacing an example referring to
PMD_REGISTER_DRIVER.
Signed-off-by: David Marchand <david.marchand@6wind.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
RTE_DEVEL_BUILD is set to := y in mk/rte.vars.mk, which makes it
impossible to override via an environment variable, and forces users
to pass it inline in the make call.
Use ?= instead to have it pick up the environment variable as well.
Signed-off-by: Luca Boccassi <lboccass@brocade.com>
Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Some targets in mk/internal/rte.compile-pre.mk are calling CC or
HOSTCC without passing CPPFLAGS, EXTRA_CPPFLAGS or HOST_CPPFLAGS,
HOST_EXTRA_CPPFLAGS.
On Debian/Ubuntu builds this means that preprocessor flags set by the
dpkg-buildpackage environment, like hardening flags, are not
correctly passed to all objects builds.
Signed-off-by: Luca Boccassi <lboccass@brocade.com>
Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Verbosity is considered enabled when $V is not empty.
It is a well spread shortcut in makefiles, see git grep '$(if $(*V'
So V=0 and V=1 are equivalent.
It is fixed by unsetting V when it is 0.
A side effect is to fix kernel module compilation verbosity
which is set to 0 when V is empty.
Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
FreeBSD make install fails because of unsupported tar option:
tar: Option --warning=no-ignore-newer is not supported
Issue fixed by removing unsupported tar option.
Fixes: 6b62a72a70 ("mk: install a standard cutomizable tree")
Fixes: e4552b9cc6 ("mk: install doc")
Reported-by: Daniel Verkamp <daniel.verkamp@intel.com>
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Following discussions on the mailing list [1] and since nobody stood up to
implement the necessary cleanups, here is the ivshmem integration removal.
There is not much to say about this patch, a lot of code is being removed.
The default configuration file for packet_ordering example is replaced with
the "native" x86 file.
The only tricky part is in eal_memory with the memseg index stuff.
More cleanups can be done after this but will come in subsequent patchsets.
[1]: http://dpdk.org/ml/archives/dev/2016-June/040844.html
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
-dumpversion is for gcc compatibility and doesn't return actual clang
version. -dumpversion only returns 4.2.1 for a long time.
Fixes: 2ef6eea891 ("mk: add clang toolchain")
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
The following tools may be installed system-wide.
It may be cleaner and more convenient to find them with the same
dpdk- prefix (especially for autocompletion).
Moreover, the script dpdk_nic_bind.py deserves a new name because it is
not restricted to NICs and can be used for e.g. crypto.
These files are renamed:
pmdinfogen -> dpdk-pmdinfogen
pmdinfo.py -> dpdk-pmdinfo.py
dpdk_pdump -> dpdk-pdump
dpdk_proc_info -> dpdk-procinfo
dpdk_nic_bind.py -> dpdk-devbind.py
setup.sh -> dpdk-setup.sh
The tools pmdinfogen, pmdinfo.py and dpdk_pdump are new in 16.07.
The scripts dpdk_nic_bind.py and setup.sh may have been used with
previous releases by end users. That's why a symbolic link still
provide the old name in the installed tools directory.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
The sed syntax of '0,/regexp/' is GNU specific and fails with
non GNU sed in FreeBSD.
To solve the issue we can use awk instead to remove duplicates.
The awk script basically keeps the last config value, while
maintaining order and comments from original config file.
Fixes: b2063f104d ("mk: filter duplicate configuration entries")
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
There is an error when linking static EAL library with an application:
eal_alarm.c:(.text+0xd7): undefined reference to `clock_gettime'
eal_alarm.c:(.text+0x20f): undefined reference to `clock_gettime'
eal_timer.c:(.text+0x108): undefined reference to `clock_gettime'
eal_timer.c:(.text+0x146): undefined reference to `clock_gettime'
The function clock_gettime() is in librt for old glibc.
Fixes: 281948b475 ("mk: fix missing librt dependencies")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Tested-by: Yongjie Gu <yongjiex.gu@intel.com>
The -l options specifying libraries to link with are in LDLIBS.
But it can happen to have some libraries in other variables.
In case of a low level dependency specified in some environments
via EXTRA_LDFLAGS, there can be an unresolved issue due to a
wrong linking order. Indeed the libraries must be specified from
the higher level (dependency consumers) to the lower level (dependencies).
It is fixed by moving LDLIBS before LDFLAGS variables in the link
command line.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Tested-by: Raslan Darawsheh <rasland@mellanox.com>
Make some cleaning before fixing the link dependency ordering
in the next commit.
- Move flags for creating a map file in the variable MAPFLAGS.
- Make only one call to linkerprefix macro.
- Group linker flags on the same line.
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Due to the hierarchy and the demand to keep the base config showing all
options, some config keys end up multiple times in the .config file.
Due to the way the actual config is sourced only the last entry is
important. That can confuse people changing values in .config which
are then ignored.
A suggested solution was to filter for duplicates at the end of the
actual config step which is implemented here.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
When building with "make V=1" it is expected to see the output of each
compiler command in order to debug them.
Unfortunately the pmdinfogen related commands were always quiet.
It is fixed by defining the commands in some Makefile variables.
They are printed if the verbose mode is enabled.
The other benefit of this rework is to stop compilation after a
failure with pmdinfogen.
The command readlink is removed in this rework because it seems useless.
Fixes: 3d781ca328 ("mk: do post processing on objects that register a driver")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
The tool pmdinfogen was called from RTE_OUTPUT/app/ which does not exist
if building a driver outside of the SDK build.
When building DPDK, RTE_SDK_BIN is RTE_OUTPUT. When building an external
driver, RTE_SDK_BIN must point to the installed DPDK directory containing
includes, libs, etc.
That's why pmdinfogen must be installed in the SDK directory and be part
of the SDK installation.
Fixes: 3d781ca328 ("mk: do post processing on objects that register a driver")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
The recipe rte.hostapp.mk does not build in hostapp/ anymore.
Fixes: 98b0fdb0ff ("pmdinfogen: add buildtools and pmdinfogen utility")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
When compiling the drivers, some code is generated with pmdinfogen.
A fresh parallel build can fail if a driver is compiled before pmdinfogen:
build/buildtools/dpdk-pmdinfogen: Permission denied
There was a dependency declared in drivers/Makefile but it cannot work
because this file is based on mk/rte.subdir.mk which do not handle
dependencies.
It is fixed by declaring the whole buildtools as (order only) prerequisite
of drivers.
Fixes: cb6696d220 ("drivers: update registration macro usage")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
This tool searches for the primer sting PMD_DRIVER_INFO= in any ELF binary,
and, if found parses the remainder of the string as a json encoded string,
outputting the results in either a human readable or raw, script parseable
format
Note that, in the case of dynamically linked applications, pmdinfo.py will
scan for implicitly linked PMDs by searching the specified binaries
.dynamic section for DT_NEEDED entries that contain the substring
librte_pmd. The DT_RUNPATH, LD_LIBRARY_PATH, /usr/lib and /lib are
searched for these libraries, in that order
If a file is specified with no path, it is assumed to be a PMD DSO, and the
LD_LIBRARY_PATH, /usr/lib[64]/ and /lib[64] is searched for it
Currently the tool can output data in 3 formats:
a) raw, suitable for scripting, where the raw JSON strings are dumped out
b) table format (default) where hex pci ids are dumped in a table format
c) pretty, where a user supplied pci.ids file is used to print out vendor
and device strings
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
Modify the compilation makefile to identify C files that export PMD
information, and use that to trigger execution of the pmdinfo binary. If
the execution of pmdinfo is successful, compile the output C file to an
object, and use the linker to do relocatable linking on the resultant
object file into the parent object that it came from. This effectively
just adds the json string into the string table of the object that defines
the PMD to the outside world.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
pmdinfogen is a tool used to parse object files and build json strings for
use in later determining hardware support in a dso or application binary.
pmdinfo looks for the non-exported symbol names this_pmd_name<n> and
this_pmd_tbl<n> (where n is a integer counter). It records the name of
each of these tuples, using the later to find the symbolic name of the
pci_table for physical devices that the object supports. With this
information, it outputs a C file with a single line of the form:
static char *<pmd_name>_driver_info[] __attribute__((used)) = " \
PMD_DRIVER_INFO=<json string>";
Where <pmd_name> is the arbitrary name of the pmd, and <json_string> is the
json encoded string that hold relevant pmd information, including the pmd
name, type and optional array of pci device/vendor ids that the driver
supports.
This c file is suitable for compiling to object code, then relocatably
linking into the parent file from which the C was generated. This creates
an entry in the string table of the object that can inform a later tool
about hardware support.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
Since below commit, ACL library is outside the scope of --whole-archive
and ACL autotest fails.
RTE>>acl_autotest
ACL: allocation of 25166728 bytes on socket 9 for ACL_acl_ctx failed
ACL: rte_acl_add_rules(acl_ctx): rule #1 is invalid
Line 1584: SSE classify with zero categories failed!
Test Failed
This is the result of the linker picking weak over non-weak functions.
Fixes: 95dc3c3cf3 ("mk: reduce scope of whole-archive static linking")
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Since [1] duplicates in LDLIBS are removed. The side effect is that it
does not distinguish between libraries or linker flags.
This patch allows multiple linker flags in LDLIBS, such as
--whole-archive.
[1] Commit: edf4d331dc ("mk: eliminate duplicates from libraries list")
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Introduce driver initialization and enable build infrastructure for
nicvf pmd driver.
By default, It is enabled only for defconfig_arm64-thunderx-*
config as it is an inbuilt NIC device.
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Maciej Czekaj <maciej.czekaj@caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
This patch adds the initial skeleton for bnxt driver along with the
nic guide, and ties the driver into the build system.
At this point, the driver simply fails init.
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com>
Reviewed-by: David Christensen <david.christensen@broadcom.com>
[Release Note Addition]
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Require all symbols used by a DSO to be resolvable via LDLIBS at
build-time. Previously it was possible to build a library with
incomplete dependencies which could then fail at run-time.
Signed-off-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
When building an external library with rte.extlib.mk, the internal
libraries were not found because the linker search path was the
external library install directory (RTE_OUTPUT/lib).
It is fixed by searching in the internal library install directory
(RTE_SDK_BIN/lib).
When building an internal library, RTE_SDK_BIN = RTE_OUTPUT.
Fixes: c6417ce61f ("mk: add build-time library directory to linker path")
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
The underlying libsso library that SNOW3G PMD uses has been updated,
so now it is called libsso_snow3g. Also, the path to the library
has been renamed to reflect this changes (now called LIBSSO_SNOW3G_PATH).
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
Added new SW PMD which makes use of the libsso_kasumi SW library,
which provides wireless algorithms KASUMI F8 and F9
in software.
This PMD supports cipher-only, hash-only and chained operations
("cipher then hash" and "hash then cipher") of the following
algorithms:
- RTE_CRYPTO_SYM_CIPHER_KASUMI_F8
- RTE_CRYPTO_SYM_AUTH_KASUMI_F9
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
The librte_pdump library provides a framework for
packet capturing in dpdk. The library provides set of
APIs to initialize the packet capture framework, to
enable or disable the packet capture, and to uninitialize
it.
The librte_pdump library works on a client/server model.
The server is responsible for enabling or disabling the
packet capture and the clients are responsible
for requesting the enabling or disabling of the packet
capture.
Enabling APIs are supported with port, queue, ring and
mempool parameters. Applications should pass on this information
to get the packets from the dpdk ports.
For enabling requests from applications, library creates the client
request containing the mempool, ring, port and queue information and
sends the request to the server. After receiving the request, server
registers the Rx and Tx callbacks for all the port and queues.
After the callbacks registration, registered callbacks will get the
Rx and Tx packets. Packets then will be copied to the new mbufs that
are allocated from the user passed mempool. These new mbufs then will
be enqueued to the application passed ring. Applications need to dequeue
the mbufs from the rings and direct them to the devices like
pcap vdev for viewing the packets outside of the dpdk
using the packet capture tools.
For disabling requests, library creates the client request containing
the port and queue information and sends the request to the server.
After receiving the request, server removes the Rx and Tx callback
for all the port and queues.
Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This patch defines the target and arch value of objcopy program for
IBM POWER PPC64 little endian architecture.
Fixes: 99d6231fdc ("mk: define objcopy-specific target and arch")
Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
